Planned cluster node maintenance with low impact on application throughput
US9679004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Jul 4, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2343
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for taking one or more nodes of a multi-node database system offline are provided. Initially, the multi-node database system uses a first data access management system (e.g., a distributed lock management system) to manage access to data stored in a database. In response to determining that one or more nodes need to be taken offline or otherwise become unavailable, the remaining nodes implement a second data access management system (e.g., an affinity-based access system) to manage access to data stored in the database. After the offline nodes are brought back online, all the nodes in the multi-node database system implement the first data access management system again. The transitions between the two data access management system may involve multiple phases that involve communicating different types of information between nodes that are taken offline and nodes that are not taken offline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.